This document is to show you how to rip DVD to audio MP3, WMA, AAC, etc. for iPod, iPhone, Zune and other music players. If you want to extract audio from AVI, XviD, WMV, MPEG, MPG, FLV, DAT, RM, RMVB, MOV, ASF, H.264, etc. to MP3, WMA, AAC, etc. you can learn the guide here:

http://www.aimersoft.com/tutorial/video-to-audio-converter.html
Step1. Please download Aimersoft DVD Audio Ripper;

Step2. Load DVD file
Then install and run Aimersoft DVD Audio Ripper. Load your DVD into the program: Please click "Load DVD" button or directly click the “File -> Load DVD folder” in the main interface, then select your DVD-ROM in the pop-up window and press the "OK" button. You also can click “Load File” button to import IFO file from your computer hard disk.

Step3. Select the chapters you want to convert.
You can convert your whole DVD by highlighting the title which contains the whole episodes of DVD, such as the title 01 in the following screenshot. Or if you like, you can select certain chapters to convert: Press the little button before “Check All” on the interface to find all the chapters in the file.
This software fully support all kinds of DVD, such as regular DVD movie and DVD MTV. DVD MTV will have several titles, so you can select the desire MTV to convert.

Step4. Select the output Audio format
Format: Click the “Format” combo-box on the interface, the result of setting will be shown on the list, select the format you want.

Audio: Select Audio it the same as select Subtitle.

And you can set the parameter to get your favorite effect by clicking the button "setting".

After all things done, click “Start” to start conversion.

Tips
This software provides basic DVD edit functions such as trim DVD, so you can convert you favorite clip.

Click “Trim” button to open the trim panel, drag the trim bar to set start time and end time to convert a clip from your movie. You can also type the exact time values in the Set Start Time field and Set End Time field to trim video. 

Download Aimersoft DVD Audio Ripper